Issue 4, 2022

Microscale investigation on interfacial slippage and detachment of ice from soft materials

Abstract

Surface icing is detrimental to applications ranging from transportation to biological systems. Soft elastomeric coatings can engender remarkably low ice adhesion strength, but mechanisms at the microscale and resulting ice extraction outcomes need to be understood. Here we investigate dynamic ice-elastomer interfacial events and show that the ice adhesion strength can actually vary by orders of magnitude due to the shear velocity. We study the detailed deformation fields of the elastomer using confocal traction force microscopy and elucidate the underlying mechanism. The elastomer initially undergoes elastic deformation having a shear velocity dependent threshold, followed by partial relaxation at the onset of slip, where velocity dependent “stick-slip” micropulsations are observed. The results of the work provide important information for the design of soft surfaces with respect to removal of ice, and utility to fields exemplified by adhesion, contact mechanics, and biofouling.

Graphical abstract: Microscale investigation on interfacial slippage and detachment of ice from soft materials

Supplementary files

Article information

Article type
Communication
Submitted
10 Dec. 2021
Accepted
07 Febr. 2022
First published
07 Febr. 2022
This article is Open Access
Creative Commons BY-NC license

Mater. Horiz., 2022,9, 1222-1231

Microscale investigation on interfacial slippage and detachment of ice from soft materials

K. Regulagadda, J. Gerber, T. M. Schutzius and D. Poulikakos, Mater. Horiz., 2022, 9, 1222 DOI: 10.1039/D1MH01993G

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